493718837 has 2 divisors, whose sum is σ = 493718838. Its totient is φ = 493718836.

The previous prime is 493718833. The next prime is 493718873. The reversal of 493718837 is 738817394.

Together with next prime (493718873) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 283787716 + 209931121 = 16846^2 + 14489^2 .

It is a cyclic number.

It is not a de Polignac number, because 493718837 - 2² = 493718833 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (493718831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246859418 + 246859419.

It is an arithmetic number, because the mean of its divisors is an integer number (246859419).

Almost surely, 2^493718837 is an apocalyptic number.

It is an amenable number.

493718837 is a deficient number, since it is larger than the sum of its proper divisors (1).

493718837 is an equidigital number, since it uses as much as digits as its factorization.

493718837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 50.

The square root of 493718837 is about 22219.7848099391. The cubic root of 493718837 is about 790.3629358383.

The spelling of 493718837 in words is "four hundred ninety-three million, seven hundred eighteen thousand, eight hundred thirty-seven".